rick, thank you. jon: well, president obama venturing into friendly territory, you might say, for a sit-down with msnbc's chris matthews. was there a tingle up the leg? what the president said about his management style and the obamacare rollout that has critics raising some eyebrows. howard kurtz weighs in. >>> plus, as the world mourns the death of former south african president nelson mandela, we have the latest from johannesburg next. [ male announcer ] research suggests cell health plays a key role throughout our lives. one a day men's 50+ is a complete multivitamin designed for men's health concerns as we age. with 7 antioxidants to support cell health. one a day men's 50+. wow...look at you. i've always tried to give it my best shot. these days i'm living with a higher risk of stroke due to afib, a type of irregular heartbeat, not caused by a heart valve problem. at first, i took warfarin, but i wondered, "could i up my game?" my doctor told me about eliquis. and three important reasons to take